Well, no suggestion?
Hence I've taken the plunge and ordered a Momo steering wheel & a hub, plus a gear knob.
I hope that will do.
Regarding the hub, they say: "
Boss-Hub-Kit-Adapter-Rover-200-214-216-220-400-414-416-420-600-45-ZS-ZR-25"
Not too pricey IMHO: £35 for the knob, £38 for the wheel (clearance sale - special savings, half price they say) & £40 for the adapter, all prices being VAT & shipping included.